Peugeot 307 Crankshaft Pulley Problems

Hi can somebody help. I have a 307 and the crankshaft pulley and fan belt snapped. Then economy mode came on windows/radio wont work. Replaced cranshaft pulley and fan belt still the same..been on the fourum and replaced with brand new batt...

i have cleaned the earth strap on the car and now all the ignition lights have come on and the engine cranks over. the engine will not fire and the doors do not lock, i have had the battery disconnected and now economy mode shows on the dis...